Marine Castings and Parts Manufacturing
KEMING is committed to delivering comprehensive solutions in the marine industry, specializing in both prototyping and full-scale production of casting parts. Our expertise lies in crafting intricate designs with thin walls, engineered to withstand the demanding high-temperature and high-stress conditions commonly found in marine environments. Our marine components are extensively utilized in critical systems such as engine parts, propeller shafts, and other essential marine machinery, enhancing durability and operational efficiency.
KEMING produces a broad range of marine casting components, including flanges, pumps, valves, and structural parts for ships and offshore equipment. We provide end-to-end support customized to meet the unique requirements of each marine project. Our unwavering dedication to quality and precision positions us as a reliable partner throughout every phase of marine design and manufacturing.
Marine Parts with Precision Casting Technology
Precision casting is highly valued in the marine industry due to its ability to produce complex shapes with exceptional dimensional accuracy. This technology supports a wide variety of metals such as stainless steel, bronze, nickel alloys, and superalloys, which are essential for marine environments. Precision casting helps reduce weight without compromising strength, enhancing fuel efficiency and vessel performance. Additionally, it minimizes the need for secondary machining, which lowers production costs and reduces material waste. As a result, many critical marine components are manufactured using precision casting, benefiting from its capacity to deliver durable, precise, and corrosion-resistant parts.

Engine and Propulsion Components
Marine engine parts such as turbine blades, impellers, crankshafts, and cylinder heads are commonly produced via precision casting. These components require high accuracy and must withstand extreme heat, pressure, and corrosive seawater conditions.

Pump and Valve Components
Pump casings, valve bodies, and impellers utilized in ballast, cooling, and fuel systems are precision cast with high accuracy to guarantee leak-proof performance, exceptional resistance to corrosion, and long-lasting durability against wear and tear in demanding environments.

Structural and Hull Components
Complex brackets, supports, and fittings used in hull assemblies and deck structures are manufactured through precision casting techniques. This process ensures the production of lightweight yet robust parts featuring intricate and detailed geometries essential.

Exhaust and Cooling Systems
Exhaust manifolds, heat exchangers, and various cooling system components greatly benefit from precision casting because it ensures highly accurate dimensions and provides excellent resistance to the harsh effects of thermal cycling and saltwater corrosion over time.

Safety and Critical Components
Fire suppression system parts, steering gear housings, and various other safety-critical components depend heavily on the exceptional reliability and precise tolerances that are achieved through advanced precision casting techniques, ensuring optimal performance and safety.

Other Marine Applications
Propeller hubs, decorative trim, instrumentation housings, and custom fittings are all produced using precision casting technology. This method is especially valuable when manufacturing complex shapes and maintaining tight tolerances is essential for high-quality results.
Example Parts of Marine Casting by KEMING
KEMING, accredited with ISO 9001 certification, has the expertise to manage all types of marine casting projects.
With 20 years of experience in casting, we are committed to delivering products of the highest quality.








Manufacturing Capabilities for Marine Casting Project
We specialize in a range of casting methods to rapidly transform your designs into reality.
We collaborate closely with you at every stage of the marine castings design and development journey.

Marine Investment Castings
Investment casting produces precise, corrosion-resistant marine parts like propellers and valves, enhancing vessel performance, durability, and fuel efficiency using lightweight, high-strength materials.

Marine Shell Castings
Shell mold casting produces durable, corrosion-resistant aluminum and stainless steel marine parts with precision and smooth surfaces, minimizing machining and enhancing performance in harsh seawater environments.

Marine Lost Foam Castings
Lost Foam Casting aids marine industry by producing durable, lightweight, complex parts with excellent surface finish and tight tolerances, improving marine engine and equipment performance.

Marine Lost Wax Castings
Lost wax casting in marine manufacturing produces precise, corrosion-resistant parts like propellers, impellers, valves, and navigation components, ensuring high accuracy and durability in harsh marine environments.
Marine & Boat Casting Metal Materials provided by KEMING
KEMING specializes in manufacturing high-quality marine castings, and have the casting capacity to produce hundreds of ferrous and non-ferrous alloy materials including stainless steel, carbon steel, alloy steel, and iron. Our products are made using advanced casting processes like lost wax investment casting and sand casting, ensuring excellent corrosion resistance and durability essential for marine environments. KEMING offers materials such as stainless steel and aluminum alloys, which provide strength, lightweight properties, and resistance to harsh saltwater conditions, making them ideal for marine hardware and boat components.
Metal Type
Recommended Processes
Example Parts
Steel
Investment Casting, Shell Sand Casting
Bearings, gear housings, stern tube bushings, azimuth housings
Stainless Steel
Investment Casting, Shell Sand Casting
Boat propellers, steering wheels, deck hardware, cleats, handles
Alloy Steel
Shell Sand Casting
Chain cable accessories, turbine blades, exhaust manifolds
Carbon Steel
Shell Sand Casting
Gear housings, stern tube bushings, azimuth housings, keels
Grey Iron
Shell Sand Casting, Lost Foam Casting
Engine blocks, pump housings, valve bodies
Ductile Iron
Shell Sand Casting,Lost Foam Casting
Bearing housings, pump housings, structural components
Aluminum
Shell Sand Casting, Lost Wax Casting
Structural components, ship equipment, cabins, interiors

Surface Treatments for Marine Casting Parts
To further enhance the performance and longevity of marine parts, KEMING applies a range of advanced surface treatments.
Powder Coating
Provides a durable, decorative finish with options for matte, gloss, or textured surfaces.
Anodized Finish
Increases corrosion resistance and surface hardness, especially for aluminum parts.
Electroplated Finish
Adds protective metal layers (chrome, nickel, zinc) to improve wear and corrosion resistance.
PVD Coating
Deposits thin, hard films (e.g., titanium nitride) for superior surface durability.
Why Choose KEMING as Marine Castings Manufacturer
Professional Expertise and Rich Experience
KEMING specializes in precision lost wax casting of carbon steel and low alloy steel, with over 20 years of manufacturing experience. Their factory spans 5,000 square meters and employs more than 50 skilled workers. Equipped with advanced CNC machining and two casting production lines, KEMING can meet demands for high-precision, high-performance castings. They are well-versed in international industrial standards such as China GB, US ASTM, and German DIN, ensuring products comply with strict global marine industry requirements.

Superior Product Quality and Certifications
KEMING holds multiple international quality management certifications, including CE, ISO9001, and ISO13485. This guarantees consistent and reliable product quality. Their use of lost wax casting combined with water glass technology produces investment castings with excellent corrosion resistance and durability, which are critical for harsh marine environments. This makes their products especially suitable for marine applications where resistance to corrosion and long service life are essential.
Robust Production Capacity and Customer Service
With an annual production capacity exceeding 2,000 tons, KEMING exports mainly to Europe, America, and Japan. They have extensive experience in foreign trade and maintain a well-established after-sales service system. KEMING offers full-process support from design consultation to final delivery. They are highly flexible, capable of producing up to 5,000 different products based on customer drawings or samples, thus meeting diverse market needs effectively.
FAQs About Marine Castings

What is Marine Casting?
Marine casting is a specialized form of metal casting used to produce parts and equipment specifically for marine applications, including ships, submarines, bridges, valves, pumps, and other underwater or coastal installations. It involves casting metals that can withstand harsh marine environments, especially corrosion from seawater.
What types of parts are produced by Marine Casting?
Typical marine cast parts include deck hardware, pumps and pump housings, cleats, handles, brackets, covers, marine electronics enclosures, bearing housings, seal rings, and seal housings. KEMING provides these casting parts that are essential to a variety of vessels and equipment.
What materials are commonly used in Marine Casting?
Common materials for marine casting by KEMING include stainless steel (304, 316, 2205 duplex), aluminum alloys (such as A356), and iron. The choice depends on required corrosion resistance, mechanical properties, cost, and the specific marine environment.
How is quality controlled in Marine Casting?
Quality control follows international standards such as ISO 9001:2015, ISO 13485:2016, and IATF 16949:2016. KEMING QC procedures include material inspection, dimensional checks, surface quality inspection, pressure testing, leak-proofing steps, and continuous improvement to ensure durability and safety in marine environments.
What finishing operations are available for Marine Casting?
Finishing processes include surface treatments to improve corrosion resistance, pressure testing for leak-proof assurance, impregnation, machining for precision, and other enhancements to improve surface quality and durability. KEMING is confident to provide you with one-stop marine casting parts manufacturing services.
What is the production lead time for Marine Casting?
The lead time for marine castings at KEMING mainly depends on the order quantity. Usually, it will take us around 4weeks to finish the mold and initial sample, and another 5 weeks to complete mass production.
Put Your Marine Parts Into Production with KEMING Today
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